Menu

Blog

Page 338

Aug 16, 2024

‘Startling Advance’ in Designer Proteins Opens a World of Possibility for Biotech

Posted by in categories: biotech/medical, robotics/AI

This type of molecular collaboration has inspired scientists for nearly a century. Here, oxygen is the effector. It flips a protein switch, helping proteins better carry oxygen through the body. In other words, it may be possible to optimize protein functions with an alternative effector drug.

The problem? The original inspiration is wonky. Sometimes hemoglobin proteins carry oxygen. Other times they don’t. In 1965, a French and American collaboration found out why. Each protein alternates between two three-dimensional shapes—one that carries oxygen and another that doesn’t. The shapes can’t coexist in the assembled protein to carry oxygen: It’s all-or-none, depending on the presence and amount of the effector.

The new study built on these lessons to guide their AI-designed proteins.

Aug 16, 2024

Nano-Semiconductors Poised to Disrupt Quantum Technology with Moiré Excitons as Qubits

Posted by in categories: computing, nanotechnology, quantum physics

Quantum technology relies on qubits, the fundamental units of quantum computers, whose operation is influenced by quantum coherence time. Scientists believe that moiré excitons — electron-hole pairs trapped in overlapping moiré interference fringes — could serve as qubits in future nano-semiconductors. However, previous limitations in focusing light have caused optical interference, making it difficult to measure these excitons accurately.

Kyoto University researchers have developed a new technique to reduce moiré excitons, allowing for accurate measurement of quantum coherence time. Their findings, published in Nature Communications, reveal that the quantum coherence of a single moiré exciton remains stable for over 12 picoseconds at −269°C, significantly longer than that of excitons in traditional two-dimensional semiconductors. The confined moiré excitons in interference fringes help maintain quantum coherence, advancing the potential of quantum technology.

“We combined electron beam microfabrication techniques with reactive ion etching. By utilizing Michelson interferometry on the emission signal from a single moiré exciton, we could directly measure its quantum coherence time,” said Kazunari Matsuda of KyotoU’s Institute Advanced Energy.

Aug 16, 2024

NASA Demonstrates ‘Ultra-Cool’ Quantum Sensor for First Time in Space

Posted by in categories: quantum physics, space

Future space missions could use quantum technology to track water on Earth, explore the composition of moons and other planets, or probe mysterious cosmic phenomena.

Aug 16, 2024

Massive Solar Storm Opens Rare 2-Hour Magnetic Highway Between Sun And Earth

Posted by in category: transportation

The sensational event triggered rare auroras on the Sun and lasted a mere two hours.

Aug 16, 2024

Astrophotographers capture rare Jupiter and Mars encounter (photos)

Posted by in category: cosmology

The two planets came as close as within a quarter-of-a-degree, or about 50% of the angular size of the lunar disk.

Lorenzo Di Cola also captured the conjunction over L’Aquila Italy. Both Jupiter and Mars were visible to the naked eye in the constellation Taurus during the cozy meet-up.

The photographer also took this amazing composition image made up of nine interval timer photos showing the two planets rising through the sky. Mars and Jupiter are visible in conjunction and if you look carefully you can even see some of Jupiter’s moons.

Aug 16, 2024

Coinbase Now Available in Hawaii Following Regulatory Clarity From America’s 50th State

Posted by in categories: cryptocurrencies, finance

Crypto exchange Coinbase just announced that Hawaii residents can now use its platform to buy and sell digital assets.

In a statement, the largest US-based crypto exchange says its products and services are now available in The Aloha State after the Hawaii Department of Commerce and Consumer Affairs (DCCA) Division of Financial Institutions (DFI) made regulatory changes that provided clarity for cryptocurrency firms.

Aug 16, 2024

The FDA just cleared a new device that stops bleeding from gunshot wounds in seconds

Posted by in categories: biotech/medical, weapons

Made by Cresilon, Traumagel can stop bleeding from gunshot wounds and is being looked at for future uses by the Department of Defense.

Aug 16, 2024

This Amino Acid Can Help Boost Brain Function When You’re Stressed

Posted by in categories: health, neuroscience

The dosage of tyrosine supplements given in studies greatly varies, ranging from fixed amounts of 2–20 g to 25–150 mg/kg of body weight.

Speak with a healthcare provider to discuss the most appropriate dose for your health concerns.

Many foods contain tyrosine, making it relatively easy to meet the daily requirements. Meat and meat products are among the best dietary sources. For example, each 6-ounce (oz) cooked serving of chicken and steak provides 1,446 mg and 1,640 mg of tyrosine, respectively.

Aug 16, 2024

Breathtaking timelapse of the Milky Way takes 10 years to create

Posted by in category: cosmology

Shooting timelapse is a complex process that requires skill and patience, which an astrophotographer considers to be the most important thing for its creation.

Aug 16, 2024

Live coverage: SpaceX to launch 116 payloads on Falcon 9 rideshare mission: Transporter-11

Posted by in category: satellites

Update 3:27 p.m. EDT: SpaceX launched the Transporter-11 mission and landed the first stage booster. Payload deployment is set to begin close to 4 p.m. EDT (2000 UTC).

SpaceX launched its Falcon 9 rocket from Vandenberg Space Force Base, sending dozens of spacecraft into orbit with its latest rideshare mission launching from California. The rocket’s first stage booster touched down back near the launch site following stage separation, creating a sonic boom for those nearby.

Continue reading “Live coverage: SpaceX to launch 116 payloads on Falcon 9 rideshare mission: Transporter-11” »

Page 338 of 11,930First335336337338339340341342Last